发明名称 MOOVING COIL TYPE CARTRIDGE
摘要 PURPOSE:To obtain a high output through simple constitution by opposing the same-polarity magnetic poles of a couple of magnets to each other closely, and generating electricity in a space with high magnetic flux density formed near their boundary surface. CONSTITUTION:The couple of cylindrical magnets 11 and 12 are adhered fixedly in magnet cases 32 and 33 on the same axial line so that S and N poles are formed on their axial line and magnetic poles N are opposed to each other. The fulcrums of motion of movable parts having coils 26a-26d are arranged on the center axes of hollow parts of the magnets 11 and 12 to induce voltages across the coils 26a-26d by magnetic flux components which are generated by the opposite parts of the magnets 11 and 12 vertical to the center axes.
申请公布号 JPS59149498(A) 申请公布日期 1984.08.27
申请号 JP19830024329 申请日期 1983.02.16
申请人 SONY KK 发明人 TAKASHIMA MITSURU;MORI YOSHIHISA
分类号 H04R9/12;H04R9/16 主分类号 H04R9/12
代理机构 代理人
主权项
地址